Bradley Schalk
← All projects Aerospace · CAD

B-36 Peacemaker — High-Fidelity Siemens NX Aircraft Model

A detailed parametric recreation of the Convair B-36 Peacemaker built in Siemens NX, with constrained assemblies, moving mechanical elements, major aircraft systems, rendered views, and an engineering animation of the finished model.

  • Siemens NX
  • Large assemblies
  • Constrained mechanisms
  • Aerospace geometry
  • Rendering
  • Animation
Aircraft
Convair B-36 Peacemaker
Software
Siemens NX — modeling, assemblies, rendering, animation
Modeled
Fuselage, wings, propulsion elements, landing gear
My role
Full model — geometry, assembly structure, mechanisms, rendering, animation
Type
Digital engineering-modeling project
Front-quarter render of the completed B-36 Peacemaker model in Siemens NX, shown in a bare-metal finish above a cloud layer.
Front-quarter render of the finished Siemens NX model.
Overview

Building a large aircraft as a real assembly

The B-36 is a demanding aircraft to model. It is physically enormous, it carries an unusual mixed propulsion arrangement, and its structure has to read correctly from every angle for the model to be worth anything. I built it in Siemens NX as a parametric model rather than a single lump of surface geometry, so the aircraft is organised the way an engineering assembly actually is.

Major geometry and systems modeled include the fuselage, the wings, propulsion elements, and the landing gear. Components are held together with assembly constraints, and mechanical elements are built to move rather than being frozen in one position.

What the project involved

  • Aircraft geometry — fuselage, wings, propulsion elements, and landing gear
  • Assembly structure — organising a large component count so the model stays navigable and editable
  • Constrained mechanisms — moving mechanical elements driven by assembly constraints
  • Engineering animation — motion studies demonstrating how those mechanisms move
  • Rendering — presentation views of the completed aircraft

Scope note: this is a digital engineering-modeling project in Siemens NX. It is a recreation of an existing aircraft — no physical B-36 was built or flown as part of this work.

Animation

The model in motion

NX flight animation Siemens NX animation of the completed B-36 Peacemaker model, used to present the aircraft assembly and digital model in a flight environment.
Renders

Finished model

Front-quarter render showing the wing planform, propulsion arrangement, and forward fuselage.
Rear-quarter render showing the tail surfaces and the arrangement of the engines along the wing.
Outcome

What I took from it

  • Assembly structure is a design decision. On a model this size, how components are grouped and constrained determines whether the file stays workable or becomes impossible to edit.
  • Constraints are what make a model behave like hardware. Building mechanisms to move properly is a very different exercise from placing parts where they look right.
  • Aircraft geometry is unforgiving. Surfaces that blend correctly from one viewpoint often fall apart from another, so the model has to be checked continuously from all sides.